39854345 has 4 divisors (see below), whose sum is σ = 47825220. Its totient is φ = 31883472.

The previous prime is 39854333. The next prime is 39854363. The reversal of 39854345 is 54345893.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24393721 + 15460624 = 4939^2 + 3932^2 .

It is a cyclic number.

It is not a de Polignac number, because 39854345 - 2⁶ = 39854281 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3985430 + ... + 3985439.

It is an arithmetic number, because the mean of its divisors is an integer number (11956305).

Almost surely, 2^39854345 is an apocalyptic number.

It is an amenable number.

39854345 is a deficient number, since it is larger than the sum of its proper divisors (7970875).

39854345 is an equidigital number, since it uses as much as digits as its factorization.

39854345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7970874.

The product of its digits is 259200, while the sum is 41.

The square root of 39854345 is about 6313.0297797492. The cubic root of 39854345 is about 341.5795735445.

The spelling of 39854345 in words is "thirty-nine million, eight hundred fifty-four thousand, three hundred forty-five".